C9 Generator Set

  • Overview
  • View product Download

Cat Generator Set Packages

Cat® generator set packages have been fully prototype tested, and certified torsional vibration analysis reports are available. The packages are designed to meet the NFPA 110 requirement for loading, and conform to the ISO 8528-5 steady state and transient response requirements.

Cat Diesel Engines

The four cycle Cat diesel engine combines consistent performance with excellent fuel economy and transient response that meets or exceeds ISO 8528-5. The engines have been designed and built for a wide range of applications and can be optimized for low fuel consumption or low emissions. The engines feature a reliable, rugged, and durable design that has been field proven in thousands of applications worldwide from emergency standby installations to continuously operating power plants.

Cooling System

The cooling system has been designed to operate in standard ambient temperatures up to 50°C (122°F) with an air flow restriction of 0.5 in water. The factory installed cooling system has been designed and tested to ensure proper generator set cooling, and includes the radiator, fan, belts, and all guarding installed as standard. Contact your Cat Dealer for specific ambient and altitude capabilities.


The generators used on Cat packages have been designed and tested to work with the Cat engine. The generators are built with robust Class H insulation and provide industry leading motor starting capability. They provide high efficiency in a majority of applications and optional coastal protection for the windings is available for harsh environments.

Cat EMCP Control Panel

The EMCP controller features the reliability and durability you have come to expect from your Cat equipment. EMCP4 is a scalable control platform designed to ensure reliable generator set operation, providing extensive information about power output and engine operation. EMCP4 systems can be further customized to meet your needs through programming and expansion modules.

World Wide Product Support

Cat Dealers provide extensive post sale support including maintenance and repair agreements. Cat dealers have over 1,800 dealer branch stores operating in 200 countries. The Caterpillar S•O•S℠ program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products.

Generator Set Specifications
Minimum Rating 180 ekW
Maximum Rating 300 ekW
Voltage 220-480 Volts
Frequency 60 Hz
Speed 1800 RPM
Generator Set Configurations
Emissions/Fuel Strategy Low Fuel Consumption, U.S. EPA Certified for Stationary Emergency Use only ( Tier 3 Nonroad Equivalent Emission Standards)
Engine Specifications
Engine Model C9 ATAAC, I-6, 4-Stroke Water-Cooled Diesel
Bore 112 mm (4.41 in)
Displacement 8.8 L (537.01 inu00b3)
Stroke 149 mm (5.87 in)
Compression Ratio 16.1:1
Aspiration Air to Air Aftercooled
Governor Type Adem™A4
Fuel System Hydraulic electronic unit injection

Standard Equipment

  • Exhaust System
    • Exhaust manifold; dry
  • Air Inlet System
    • Aftercooler core
    • Turbocharger
  • Fuel System
    • Primary fuel filter w/integral water separator and secondary filter
    • Fuel cooler
    • Fuel priming pump
    • Flexible fuel lines
    • Engine fuel transfer pump
  • Generators and Generator Attachments
    • Brushless, self-excited 2/3 pitch, random wound
    • IP23 protection
    • Insulation class H and temperature rise
    • Power centre, IP22 bottom cable entry
    • Segregated low voltage wiring panel
  • Governing System
    • Cat electronic governor (ADEM A4)
  • Lube System
    • Oil cooler
    • Lubricating oil
    • Oil filter and dipstick
    • Oil drain lines with valve; piped to edge of base
    • Fumes disposal; piped to front of radiator
  • Protection System
    • Safety shutoffs for:
    • High water temperature
    • Overspeed
    • Low oil pressure
  • Cooling System
    • Coolant drain line with valve; terminated on edge of base
    • Fan and belt guards
    • Coolant level sensor
    • Thermostats and housing, full open temperature 92 deg C (198 deg F)
    • Coolant level sight gauge
    • Jacket water pump, gear driven, centrifugal
    • Caterpillar extended life coolant
  • Starting / Charging System
    • 24-Volt electric starting motor
    • 24-Volt, 45 amp charging alternator
  • Control Panels
    • EMCP4.4 control panel
  • General
    • Paint, Caterpillar Yellow
    • Vibration damper
    • Parts book
    • Operation and maintenance manual pack and OMM storage compartment, wiring diagrams included

Optional Equipment

  • Certifications
    • IBC certification wind enc
    • Certifications of compliance
  • Air inlet system
    • STD air cleaner
    • Air cleaner – Duel element
    • Air cleaner – Heavy duty
  • Space Heater – Generator
    • Space heater control
  • Generator Attachments
    • Permanent magnet generator
  • Circuit Breakers
    • Power terminal strips
    • Separation plate
    • 3-Pole 100% rated
    • Single LSI/I circuit breakers package mounted
    • Single circuit breakers – Manual
    • Single circuit breakers – motorized
    • Duel breakers first LS/I circuit breaker (CB1) package mounted
    • Dual breakers second LS/I circuit breaker (CB2) package mounted
    • Dual breakers first LSI circuit breaker (CB1) package mounted
    • Dual breakers second LSI circuit breaker (CB2) package mounted
    • Third breakers (CB3 LS/I) package mounted
    • Third breakers (CB3 LSI) package mounted
    • Auxiliary contacts
    • Neutral bars
    • Current transformers
    • Power cables
  • Control Panels
    • Control panel mounting location
    • Local annunciator
    • Remote annunicators
    • Control panel options
    • Breaker box mounting location
  • Cooling System
    • Standard radiator
    • Stone guards / rad trans flange
  • Enclosures
    • Weather protective enclosures
    • Sound attenuated enclosures
    • Aluminum enclosures
  • Exhaust System
    • Silencers – end in – end out; 10 and 25 dba muffler attenuation
    • Silencers – engine mounted muffler
    • Flexible exhaust fittings
    • 6″ (152.4 mm) Flange kit
    • Elbow kit
    • 6″ (152.4 mm) Elbow kit
  • Fuel System
    • Sub tank bases
    • Integral UL listed tank bases
    • 5 Gallon spill contain
    • Locking fuel fill
    • Audio and visual fuel alarm
      • CSA/ULC accessory kit with OPV
      • CSA/ULC accessory kit with DT
    • Generator attachments
      • Permanent magnet generator
    • Mounting System
      • Captive linear vibration isolators between base and engine-generator
      • 4 Certified base mounted lifting eyes
    • Bases
      • Narrow skid base
      • Wide base
    • Control Panels
      • Annunicator box
      • remote E-stop button
    • Starting / Charging
      • Battery charger 10 amp dual / UL
      • No battery set
      • 1000 CCA batteries wet, 90 amp/hr – installed
      • 1000 CCA batteries wet, 90 amp/hr – shipped loose
      • 1400 CCA batteries wet, 200 amp/hr – installed
      • 1400 CCA batteries wet, 200 amp/hr – shippped loose
      • Battery disconnect switch
      • Jacket water heater
      • Shore power control group
    • Special Packing / Inspectons for Shipment
      • Special tests / reports
      • Special packing for shipment
      • Special inspections

    Enquiry Form